Cevallia sinuata [Loasaceae]

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Scientific Name Cevallia sinuata USDA PLANTS Symbol CESI
Common Name Stinging Serpent, Stinging Cevallia ITIS Taxonomic Serial No. 19842
Family Loasaceae (Stickleaf) SEINet
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Description Habitat: Various soil types in open areas, washes and along roadsides; found in the Big Bend area, southeast along the Rio Grande and north sporadically as far as the Texas Panhandle.
Plant: Short, woody, branched perennial subshrub up to 2 feet tall, armed with long stinging hairs.
Leaves: Elliptic, 3/4 to 3 inches long; lower leaves short-petiolate, upper sessile; margins sinuate-toothed to pinnately lobed; surfaces covered with stinging hairs.
Inflorescence: On peduncles 1 to 4 inches long, very congested cymes resembling balls about 1-1/2 inch across with many very small yellow blossoms and buds; flowers with 5 slender, hairy yellow petals surrounded by similar-looking sepals, 5 stamens.
Blooming Period: April to October.
References: "Little Big Bend" by Roy Morey, "Manual of the Vascular Plants of Texas" by Correll and Johnston and SEINet.
Note: Thanks to Roy Morey for the plant identification.
BONAP Distribution Map

Texas Status:

© Tom Lebsack 2023